Home / 71,878.86-99,188.55-41,661.81

Finding the Fourth Proportional to 71,878.86, 99,188.55 and 41,661.81

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Solution

The fourth proportional to 71,878.86, 99,188.55 and 41,661.81 is: 57,490.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,878.86 : 99,188.55 = 41,661.81 : x
  2. Step 2: Convert to fraction form
    71,878.86/99,188.55 = 41,661.81/x
  3. Step 3: Cross multiply
    71,878.86x = 99,188.55 × 41,661.81
  4. Step 4: Simplify right side
    71,878.86x = 4,132,374,524.28
  5. Step 5: Solve for x
    x = 4,132,374,524.28/71,878.86
  6. Step 6: Final answer
    x = 57,490.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.